1 Kelvin is equivalent to -272.15 degrees Celsius or -457.87 degrees Fahrenheit. This temperature is essentially the limit of how low a temperature can go; it is known as absolute zero. At absolute zero, all molecular motion ceases, and substances reach their lowest possible energy state.
To understand this better, the Kelvin scale is an absolute temperature scale used in science, particularly in fields like physics and chemistry. The Kelvin scale starts at absolute zero, meaning 0 K is the point where all thermal motion stops. Therefore, when we talk about 1 Kelvin, we’re only 1 degree above absolute zero. It’s important to note that the Kelvin scale does not use negative numbers, as it is based on absolute temperatures.